Tetrayttrium(III) trisulfide disilicate

Tetrayttrium(III) trisulfide disilicate, Y4S3(Si2O7), crystallizes in the Sm4S3(Si2O7) structure type. The structure consists of isolated (Si2O7)6- units (2mm. symmetry) and two crystallographically independent Y3+ cations bridged by one S and one O atom. The first Y atom (site symmetry .m.) is coordinated by three O atoms and three S atoms in a trigonal-prismatic arrangement whereas the second Y atom (site symmetry ..2) is coordinated by six O atoms and three S atoms in a tricapped trigonal-prismatic arrangement.

Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: WM2440 ).

Acknowledgements

This research was supported by the US Department of Energy, Basic Energy Sciences, Chemical Sciences, Biosciences, and Geosciences Division and Division of Materials Sciences and Engineering Grant ER-15522.

This is an open-access article distributed under the terms of the Creative Commons Attribution Licence, which permits unrestricted use, distribution, and reproduction in any medium, provided the original authors and source are cited.